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阅读理解Everyhumanbeinghasauniquearrangementoftheskinonhisfingersandthisarrangementisunchangeable.Scientistsandexpertshaveprovedtheuniquenessoffinger-printsanddiscover
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  答案:1.D;2.C;3.B;4.B;解析:(1)细节理解题。从第一段最后一句可知,人的指纹是独一无二的。(2)推理判断题。从第二段第二句“Burnscutsandotherdamagetotheouterpartoftheskinwillb...
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阅读理解

  Everyhumanbeinghasauniquearrangementoftheskinonhisfingersandthisarrangementisunchangeable.Scientistsandexpertshaveprovedtheuniquenessoffinger-printsanddiscoveredthatnoexactlysimilarpatternispassedonfromparentstochildrenthoughnobodyknowswhythisisthecase.

  Theridgestructureonaperson’sfingersdoesnotchangewithgrowthandisnotaffectedbysurfaceinjuries.Burnscutsandotherdamagetotheouterpartoftheskinwillbereplacedintimebynewonewhichbearsareproductionoftheoriginalpattern.Itisonlywhentheinnerskinisinjuredthatthearrange-mentwillbedestroyed.Somecriminalsmakeuseofthisfacttoremovetheirownfinger-printsbutthisisadangerousandraresteptotake.

  Finger-printscanbemadeveryeasilywithprinter’sink.Theycanidentifybyrecordedeasily.Withspecialmethodsidentificationcanbeachievedsuccessfullywithinashorttime.Becauseofthesimplicityandeconomyofthissystemfinger-printshaveoftenbeenusedasamethodofsolvingcriminalcase.Asuspectedmanmaydenyachargebutthismaybeinvain.Hisfinger-printscanprovewhoheisevenifhisappearancehasbeenchangedbyageoraccident.

  Whenasuspectleavesfinger-printsbehindatthesceneofacrimetheyaredifficulttodetectwiththenakedeye.Specialtechniquesareusedto“develop”them.Someofthemarksfoundareincompletebutidentificationispossibleifaprintofaquarterofaninchsquarecanbeobtained.

Scientistsandexpertshaveprovedthatthepatternofahumanbeing’sfingerskin________.

[  ]

A.

issimilartohismother’s

B.

isvaluabletohimselfonly

C.

islikethatofotherswiththesametypeofblood

D.

isdifferentfromthatofallothers

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《阅读理解Everyhumanbeinghasauniquearrangementoftheskinonhisfingersandthisarrangementisunchangeable.Scientistsandexpertshaveprovedtheuniquenessoffinger-printsanddiscover|小学英语问答-字典翻译问答网》
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